ZABBIX CERTIFIED SPECIALIST DAY 2
EXAM QUESTIONS WITH VERIFIED
ANSWERS
Which three Item types cannot have update intervals defined? - Answer-Zabbix
What is the difference between numeric (unsigned) and numeric (float)? - Answer-
Unsigned; whole numbers (rounds down), float; decimal numbers.
What type of regular expression does Zabbix support for preprocessing? - Answer-
PCRE (Perl Compatible Regular Expression)
When using regular expression, how many captured groups can be used? - Answer-
10
What two fields must be specified when setting up preprocessing on the frontend? -
Answer-Pattern - regular expression & Output - capturing group
What is the purpose of discard unchanged? - Answer-To limit unnecessary data from
being added to the database. Typically data that does not change over time.
What is the step that is always executed as the first preprocessing step? - Answer-
Check if there was an error in collecting item value
What are the three main ways in which Items can become unsupported? - Answer-
On data collection time, In preprocessing steps, Or when writing into database
What are the three ways in which Items may become unsupported on data collection
time? And how can you fix them? - Answer-Wrong item key or parameters,
Timeout/communication error, Wrong credentials/incorrect permissions. Can be fixed
by 'check for not supported value' preprocessing step
When will not supported Items be checked? - Answer-Every item update interval
What Zabbix server command is used to reload the configuration cache? - Answer-
zabbix-server -R config_cache_reload
When running a passive item test, is any of this data stored? - Answer-No
What are the two options for testing an Item? - Answer-Manual test or get value from
the host
What is the order of the values in the Trigger expression? And what is the syntax for
this? - Answer-function(/host/key,<additional parameters>)<operator><constant>
In which two locations can triggers be created? - Answer-Host, Template
, Which two fields are mandatory when creating triggers? - Answer-Trigger name,
Trigger expression
What tool can you use to create dynamic problem names for Triggers? - Answer-
Macros
Regarding event names, the same set of macros is supported as in the trigger name
plus which macros? - Answer-{TIME} & {?EXPRESSION}
What is the syntax for an expression macro? - Answer-{?expression}
Are user macros supported inside expression macros? - Answer-No
What macros can leverage the fmtnum function and what is this functions purpose? -
Answer-{ITEM.VALUE}, {ITEM.LASTVALUE} and this defines the number of digits
after a decimal point
What is the point of Operational data when looking at the problems page? - Answer-
To display real time data that is not present in the problem message
What are the three options for displaying Operational data? - Answer-None,
Separately (separate column), With problem name (separated by parentheses)
What are the six severities can be assigned to a trigger? - Answer-Not classified,
Info, Warning, Average, High, Disaster
Can you change the colour of severities? If so, where can this be done? - Answer-
Yes under Administration > General > Trigger displaying options
What are three ways to resolve a problem? - Answer-Trigger expression only
(FALSE), Specifying additional recovery expression (Trigger FALSE & Recovery
TRUE), Manually closing the problem
Can you close a problem manually without it being allowed in the trigger
configuration? If so, how do you do this? - Answer-No, you cannot.
True or False. Recovery expression will stop the problem from triggering again if
true. - Answer-False. If the trigger is TRUE and recovery expression is also TRUE,
the problem will remain open.
trapper, SNMP trapper, Dependent items.
What is the minimum allowed update interval? - Answer-1 second.
What is the default update interval metric if a suffix is not set? - Answer-Seconds.
What is one reason why you might want to setup flexible update intervals? And if
multiple exist, which takes precedence? - Answer-To retrieve data less frequently
outside of business hours. Lowest interval takes precedence.
EXAM QUESTIONS WITH VERIFIED
ANSWERS
Which three Item types cannot have update intervals defined? - Answer-Zabbix
What is the difference between numeric (unsigned) and numeric (float)? - Answer-
Unsigned; whole numbers (rounds down), float; decimal numbers.
What type of regular expression does Zabbix support for preprocessing? - Answer-
PCRE (Perl Compatible Regular Expression)
When using regular expression, how many captured groups can be used? - Answer-
10
What two fields must be specified when setting up preprocessing on the frontend? -
Answer-Pattern - regular expression & Output - capturing group
What is the purpose of discard unchanged? - Answer-To limit unnecessary data from
being added to the database. Typically data that does not change over time.
What is the step that is always executed as the first preprocessing step? - Answer-
Check if there was an error in collecting item value
What are the three main ways in which Items can become unsupported? - Answer-
On data collection time, In preprocessing steps, Or when writing into database
What are the three ways in which Items may become unsupported on data collection
time? And how can you fix them? - Answer-Wrong item key or parameters,
Timeout/communication error, Wrong credentials/incorrect permissions. Can be fixed
by 'check for not supported value' preprocessing step
When will not supported Items be checked? - Answer-Every item update interval
What Zabbix server command is used to reload the configuration cache? - Answer-
zabbix-server -R config_cache_reload
When running a passive item test, is any of this data stored? - Answer-No
What are the two options for testing an Item? - Answer-Manual test or get value from
the host
What is the order of the values in the Trigger expression? And what is the syntax for
this? - Answer-function(/host/key,<additional parameters>)<operator><constant>
In which two locations can triggers be created? - Answer-Host, Template
, Which two fields are mandatory when creating triggers? - Answer-Trigger name,
Trigger expression
What tool can you use to create dynamic problem names for Triggers? - Answer-
Macros
Regarding event names, the same set of macros is supported as in the trigger name
plus which macros? - Answer-{TIME} & {?EXPRESSION}
What is the syntax for an expression macro? - Answer-{?expression}
Are user macros supported inside expression macros? - Answer-No
What macros can leverage the fmtnum function and what is this functions purpose? -
Answer-{ITEM.VALUE}, {ITEM.LASTVALUE} and this defines the number of digits
after a decimal point
What is the point of Operational data when looking at the problems page? - Answer-
To display real time data that is not present in the problem message
What are the three options for displaying Operational data? - Answer-None,
Separately (separate column), With problem name (separated by parentheses)
What are the six severities can be assigned to a trigger? - Answer-Not classified,
Info, Warning, Average, High, Disaster
Can you change the colour of severities? If so, where can this be done? - Answer-
Yes under Administration > General > Trigger displaying options
What are three ways to resolve a problem? - Answer-Trigger expression only
(FALSE), Specifying additional recovery expression (Trigger FALSE & Recovery
TRUE), Manually closing the problem
Can you close a problem manually without it being allowed in the trigger
configuration? If so, how do you do this? - Answer-No, you cannot.
True or False. Recovery expression will stop the problem from triggering again if
true. - Answer-False. If the trigger is TRUE and recovery expression is also TRUE,
the problem will remain open.
trapper, SNMP trapper, Dependent items.
What is the minimum allowed update interval? - Answer-1 second.
What is the default update interval metric if a suffix is not set? - Answer-Seconds.
What is one reason why you might want to setup flexible update intervals? And if
multiple exist, which takes precedence? - Answer-To retrieve data less frequently
outside of business hours. Lowest interval takes precedence.
